Southern California May 19, 2021 6:50 pm CHP Continues to Investigate BB Or Pellet Gun Shootings on 91 Freeway Investigators are hoping the public can help solve the crimes. Tony Shin reports for the NBC4 News on Wednesday, May 19, 2021. US & World Videos 5:00 Demonstrations disrupt classes at UCLA 2:36 Law enforcement officers on UCLA campus as students return 1:57 Hazmat team responds after two people are found dead in Northridge 18:12 Police begin to clear protesters from USC campus 3:18 USC's commencement preparation includes increased security patrol